We study tilted cold dark matter (CDM) models, that is OMEGA0 = 1 models with a primordial spectral index n less than or similar to 1. We test these models against three experiments on the cosmic microwave background anisotropy at 7', 3-degrees, and 6-degrees, and against measurements of galaxy peculiar velocities on large scales. These observations together suggest that the whole class of tilted CDM models with n less-than-or-equal-to 1 can be ruled out, for any value of the biasing parameter b.

Muciaccia, P.F., Mei, S., De Gasperis, G., & Vittorio, N. (1993). Tilted cold dark matter models confront the cosmic microwave background and the galaxy peculiar velocity field. THE ASTROPHYSICAL JOURNAL, 410(2), L61-L64 [10.1086/186880].

Tilted cold dark matter models confront the cosmic microwave background and the galaxy peculiar velocity field

DE GASPERIS, GIANCARLO;VITTORIO, NICOLA
1993

Abstract

We study tilted cold dark matter (CDM) models, that is OMEGA0 = 1 models with a primordial spectral index n less than or similar to 1. We test these models against three experiments on the cosmic microwave background anisotropy at 7', 3-degrees, and 6-degrees, and against measurements of galaxy peculiar velocities on large scales. These observations together suggest that the whole class of tilted CDM models with n less-than-or-equal-to 1 can be ruled out, for any value of the biasing parameter b.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/05 - Astronomia e Astrofisica
English
Con Impact Factor ISI
COSMIC MICROWAVE BACKGROUND; DARK MATTER; GALAXIES, FORMATION
Muciaccia, P.F., Mei, S., De Gasperis, G., & Vittorio, N. (1993). Tilted cold dark matter models confront the cosmic microwave background and the galaxy peculiar velocity field. THE ASTROPHYSICAL JOURNAL, 410(2), L61-L64 [10.1086/186880].
Muciaccia, P; Mei, S; DE GASPERIS, G; Vittorio, N
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/45006
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